| Country |
Chief of State |
Head of Government |
| Afghanistan |
King Mohammed Zahir Shah |
Prime Minister Noor Ahmed Etemadi |
| Albania |
Communist Party First Secretary Enver Hoxha |
|
| Algeria |
President Houari Boumedienne |
| Argentina |
President Juan Carlos Ongania |
| Australia |
Queen Elizabeth II
Governor-General |
Prime Minister John Grey Gorton |
| Austria |
|
|
| Bangladesh |
|
|
| Barbados |
Queen Elizabeth II
Governor-General |
Prime Minister Errol W. Barrow |
| Belgium |
|
Premier Paul Vanden Boeynants
(from ) Gaston Eyskens |
| Bhutan |
King Jigme Wangchuk |
| Bolivia |
President Rene Barrientos Ortuño |
| Botswana |
President Sir Seretse Khama |
| Brazil |
President Artur da Costa e Silva |
| Bulgaria |
First Secretary of the Communist Party Todor
Zhikov |
|
| Burma |
Ne Win |
|
| Burundi |
President Michel Micombero |
| Cambodia |
Prince Norodom Sihanouk |
|
| Cameroon |
President Ahmadou Ahidjo |
| Canada |
Queen Elizabeth II
Governor-General Roland Michener |
Prime Minister Lester B. Pearson
(from April 20) Pierre Elliott Trudeau |
| Central African Republic |
President Jean-Bédel Bokassa |
| Ceylon |
|
Prime Minister Dudley Senanayake |
| Chad |
President Francois Tombalbaye |
| Chile |
President Eduardo Frei Montalva |
| China, Communist |
Communist Party Chairman Mao Tse-tung |
Premier |
| China, Nationalist |
President Chiang Kai-shek |
Premier |
| Colombia |
President Carlos Lleras Restrepo |
| Congo (Brazzaville) |
President Alphonse Massamba-Debat
(from ) Marien Ngouabi |
| Congo (Kinshasa) |
President Joseph-Désiré Mobutu |
| Costa Rica |
President Jose Joaquin Trejos |
| Cuba |
President Osvaldo Dorticos Torrado |
Premier Fidel Castro |
| Cyprus |
President Archbishop Makarios II |
Prime Minister Spyros A. Kyprianou |
| Czechoslovakia |
Communist Party Secretary Antonin Novotny
(from January 5) Alexander Dubcek |
Premier Oldrich Cernik |
| Dahomey |
President Emile D.Zinsou |
| Denmark |
King Frederik IX |
Premier Jens Otto Krag
(from ) Hilmar Baunsgaard |
| Dominican Republic |
President Joaquin Balaguer |
| Ecuador |
President
(from September ) José Maria Velasco Ibarra |
| El Salvador |
President Fidel Sanchez Hernandez |
| Equatorial Guinea |
President Francisco Macias Nguema |
| Ethiopia |
Emperor Haile Selassie I |
| Fiji |
|
|
| Finland |
President Urho Kekkonen |
Premier Rafael Paasio
(from ) Maune Koivisto |
| France |
President Charles de Gaulle |
Premier Georges Pompidou
(from July 10) Maurice Couve de Murville |
| Gabon |
President Albert B. Bongo |
| Gambia |
|
Prime Minister D. K. Jawara |
| Germany, East |
First Secretary of the Communist Party Walter
Ulbricht |
Prime Minister Willi Stoph |
| Germany, West |
President Heinrich Lübke |
Chancellor Kurt Kiesinger |
| Ghana |
|
Chairman Koseph A. Ankrah |
| Greece |
King Constantine II |
Premier George Papadopoulos |
| Guatemala |
President Julio Mendez Montenegro |
| Guinea |
President Sékou Touré |
| Guyana |
|
Prime Minister Forbes Burnham |
| Haiti |
President François Duvalier |
| Honduras |
President Osvaldo Lopez Arellano |
| Hungary |
First Secretary of the Communist Party Janos
Kadar |
|
| Iceland |
President Asgeir Asgeirsson
(from ) Kristjan Eldjarn |
Premier Bjarni Benediktsson |
| India |
President Zakir Husain |
Prime Minister Indira Gandhi |
| Indonesia |
President Suharto |
| Iran |
Shah Mohammed Reza Pahlavi |
Premier Amir Abbas Hoveida |
| Iraq |
President Abdul Rahman Arif
(from July 17) Brigadier General Ahmed Hassan
al-Bakr |
| Ireland |
President Eamon de Valera |
Prime Minister John M. Lynch |
| Israel |
President Schneor Zalman Shazar |
Prime Minister Levi Eshkol |
| Italy |
President Giuseppe Saragat |
Premier Aldo Moro
(from ) Giovanni Leone
(from December ) Mariano Rumor |
| Ivory Coast |
President Felix Houphouet-Boigny |
| Jamaica |
|
Prime Minister Hugh Shearer |
| Japan |
Emperor Hirohito |
Prime Minister Eisaku Sato |
| Jordan |
King Hussein II |
Premier Bahjat al-Talhouni |
| Kenya |
President Jomo Kenyatta |
| Korea, North |
Premier Kim Il Sung |
| Korea, South |
President Chung Hee Park |
Prime Minister Chung Il Kwon |
| Kuwait |
Sheikh Sabah al-Salem al-Sabah |
| Laos |
King Savang Vatthana |
Premier Souvanna Phouma |
| Lebanon |
President Charlers Helou |
Prime Minister Rashid Karami |
| Lesotho |
King Moshsoeshoe II |
| Liberia |
President William V. S. Tubman |
| Libya |
King Mohammed Idris Et Senussi |
Premier Wanis al-Geddafi |
| Liechtenstein |
|
| Luxembourg |
Grand Duke Jean |
Prime Minister Pierre Werner |
| Malagasy Republic |
President Philibert Tsiranana |
| Malawi |
President H. Kamuzu Banda |
| Malaysia |
|
Prime Minister Tunku Abdul Rahman |
| Maldives |
Sultan Mohammed Farid Didi |
Prime Minister Ibrahim Nasir |
| Mali |
President Modibo Keita
(from November ) Yoro Diakite |
| Malta |
|
Prime Minister Giorgio B. Olivier |
| Mauritania |
President Moktar Ould Daddah |
| Mauritius |
|
Prime Minister Sir Seewoosagur Ramgoolam |
| Mexico |
President Gustavo Diaz Ordaz |
| Monaco |
|
| Mongolia |
Zhamsarangin Sambu |
Premier Yumzhagin Tsedenbal |
| Morocco |
King Hassan II |
| Muscat and Oman |
Sultan Said Ibn Taimur |
| Nauru |
|
| Nepal |
King Mahendra Bir Birkram Shah Deva |
Prime Minister Surya Bahadur Thapa |
| Netherlands |
Queen Juliana |
Prime Minister Piet de Jong |
| New Zealand |
|
Prime Minister Keith J. Holyoake |
| Nicaragua |
President Anastasio Somoza
Debayle |
| Niger |
President Hamani Diori |
| Nigeria |
Yakubu Gowon |
| Norway |
King Olav V |
Prime Minister Per Borten |
| Oman |
|
| Pakistan |
President Mohammad Ayub Khan |
| Panama |
President Marco A. Robles
(from October 1) Arnulfo Arias
(from October 11) Jose M. Pinilla |
| Paraguay |
President Alfredo Stroessner |
| Peru |
President Fernando Belaúnde Terry
(from October 3) Juan Velasco Alvarado |
| Philippines |
President Ferdinand E. Marcos |
| Poland |
Communist Party Secretary Wladyslaw Gomulka |
Premier |
| Portugal |
President Americo Tomaz |
Premier António de Oliviera Salazar
(from September 26) Marcelo Caetano |
| Qatar |
|
|
| Rhodesia |
|
Prime Minister Ian Smith |
| Romania |
Communist Party Secretary Nicolae Ceausescu |
Premier Ion |
| Rwanda |
President Gregorie Kayibanda |
| Saudi Arabia |
King Faisal |
| Senegal |
President Leopod Senghor |
| Sierra Leone |
|
Prime Minister Andrew Juxon-Smith
(from April ) Siaka Stevens |
| Singapore |
President Yusof Bin Ishak |
Prime Minister Lee Kuan Yew |
| Somalia |
President Abdirashid Ali
Shermarke |
| South Africa |
President J. J. Fouche |
Prime Minister B. J. Vorster |
| Spain |
Francisco Franco |
| Sri Lanka |
|
|
| Sudan |
|
Prime MInister Ahmed Mahgoub |
| Swaziland |
King Sobhuza II |
Prime Minister Makhosini Dlamini |
| Sweden |
King Gustaf VI |
Premier Tage Erlander |
| Switzerland |
President Willy Spühler |
| Syria |
President Nureddin al-Atassi |
Premier Yussef Zayen
(from October ) Nureddin al-Atassi |
| Tanzania |
President Julius K. Nyerere |
| Thailand |
King Bhumibol Adulyadej |
Prime Minister Thanom Kittikachorn |
| Togo |
President Étienne Eyadéma |
| Tonga |
|
|
| Trinidad and Tobago |
|
Prime Minister Eric Williams |
| Tunisia |
President Habib Bourguiba |
| Turkey |
President Cevdet Sunay |
Premier Suleyman Demirel |
| Uganda |
President Milton Obote |
| United Arab Republic |
President Gamal Abdel Nasser |
| United Kingdom |
Queen Elizabeth II |
Prime Minister Harold Wilson |
| United States |
President Lyndon B. Johnson |
| U.S.S.R. |
Communist Party General Secretary Leonid
Brezhnev |
Premier Aleksei Kosygin |
| Upper Volta |
Sangoule Lamizana |
| Uruguay |
President Jorge Pacheco Areco |
| Venezuela |
President Rafael Caldera |
| Vietnam, North |
President Ho Chi Minh |
Premier Pham Van Dong |
| Vietnam, South |
President Nguyen Van Thieu |
| Yemen |
Abdul Rahman al-Iryani |
Premier Hassan al-Amri |
| Yemen, Southern |
President Qahtan al-Shaabi |
| Yugoslavia |
President Josip Broz Tito |
| Zambia |
President Kenneth K. Kaunda |
